Bod types

BOD types

1. BOD Types Biochemical Oxygen Demand

2. What is BOD Amount of oxygen absorbed by a sewage sample during 5d of specific time under 20 c of specific temperature   Why is BOD To determine how much bacteria /organic matter present in the sewage To determine what effect dirty water   Some facts related to BOD Oxidant is microorganism For drinking water BOD less than 1 mg/L Any to be discharged in natural bodies of water should have BOD less than 20 mg/L  

3. c BOD n BOD t BOD TOC

4. c BOD Carbonaceous Biochemical Oxygen Demand   It is listed as a conventional pollutant Measured by the depletion of dissolved oxygen by biological organisms in a body of water in which the contribution from nitrogenous bacteria has been suppressed  It is a method defined parameter is widely used as an indication of the pollutant removal from wastewater It has the widest application in measuring waste loadings to treatment plants  

5. n BOD Nitrogenous Biochemical Oxygen Demand The nitrogenous waste in municipal and industrial sewage is used by autotrophic bacteria They use a significant amount of oxygen as an energy source and convert ammonia to nitrates, This phenomenon is called n BOD. The nutrient enrichment ‘pollution’ contributes to the eutrophication of lakes , rivers and water bodies when discharged in a final effluent .

6. t BOD Total biochemical oxygen demand of a water sample It’s the amount of oxygen required to completely oxidize the organic compounds to carbon dioxide and water through generations of microbial growth, death & decay

7. TOC Total Organic Carbon It has been standardized as a reference parameter for the assessment of organic pollution in water

8. Correlations between COD and TOC COD methods are based on the principle of the dichromate oxidation Correlations between TOC and COD are defined in the German waste water ordinance and can be determined for each substance  correlation factors for unknown mixtures can also be detected